<template>
  <h2>当前求和为:{{ sum }}</h2>
  <button @click="sum++">点我++</button>
  <hr>
  <h2>姓名：{{ name }}</h2>
  <h2>年龄：{{ age }}</h2>
  <h2>薪资：{{ job.j1.salary }}K</h2>

  <button @click="name+='~'">修改姓名</button>
  <button @click="age++">增长年龄</button>
  <button @click="job.j1.salary++">涨薪</button>
</template>

<script>
import {toRefs, reactive, ref, readonly, shallowReadonly, shallowRef} from "vue";

export default {
  name: "Demo",
  setup() {
    let sum = ref(0)
    let person = reactive({
      name: '张三',
      age: 18,
      job: {
        j1: {
          salary: 20
        }
      }
    })

    // person = readonly(person)
    // person = shallowReadonly(person)
    // sum = readonly(sum)
    // sum = shallowReadonly(sum)



    return {
      sum,
      ...toRefs(person)
    }
  }
}
</script>
